/*
 * Copyright 2017-2018 Allegro.pl
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { NumberRange, TimeRange } from "plywood";

export type ContinuousValue = number | Date;
export type ContinuousRange = NumberRange | TimeRange;

export type ContinuousDomain = [ContinuousValue, ContinuousValue];

export interface ContinuousScale {
  (x: ContinuousValue): number;
  invert(x: number): ContinuousValue;
  domain(): ContinuousDomain;
  domain(domain: ContinuousDomain): ContinuousScale;
  range(): number[];
  range(range: number[]): ContinuousScale;
}
